<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>个人网站</title>
    <style>
        body{
            margin: 0;
        }
        .header{
            height: 50px;
            background: #899;
            padding:0 calc(50% - 600px);
            line-height: 50px;
            color: #fff;
            display: flex;
        }

        .logo{
            margin-right: 200px;
        }

        .item{
            width: 200px;
            text-align: center;
        }

        .banner{
            width: 1200px;
            height: 400px;
            background: #0b4b5a url("img/01.jpg") no-repeat 0 0/cover;
            margin: 10px auto;
        }
    </style>
</head>
<body>

<div class="header">
    <div class="logo">WUYOU</div>
    <div class="item">WORK</div>
    <div class="item">ABOUT</div>
    <div class="item">CONTACT</div>
</div>

<div class="banner"></div>

</body>
</html>